/Engine/Source/Developer/WidgetRegistration/Public/Layout/SeparatorBuilder.h
Generates theSSeparatorand returns the TSharedRefas a reference to it. This provides some convenience syntax to generate the widget and get a reference to it in a concise way.
the TSharedRefas a reference to the generatedSSeparator
[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SSeparator](API\Runtime\Slate\Widgets\Layout\SSeparator) > operator*()